At a congressional hearing, Secret Service director Julia Pierson accepted full responsibility for the recent White House intruder and outlined strategy for improving procedures. Photo: Getty

This transcript has been automatically generated and may not be 100% accurate.

... I'm here today to address the concern that we all share ... calling the incident September nineteen at the White House ... it's clear that our security plan was not properly executed ... this is unacceptable ... and I take full responsibility ... that will make sure that it does not happen again ... as director of my primary concern is ensuring the operational readiness of my workforce ... I have been aggressive in addressing our human capital challenges ... ensuring professionalism and developing leaders ... to act getting gauge them with the agency supervisors and employees have made it clear my expectations for professionalism and personal accountability ... much of what we do to protect the president the White House and bolts information is highly sensitive or classified ... so I'll be limited what I can say a public hearing ... on September nineteen Emmy and scale the north fence of the White House across the lawn will ignoring verbal commands from uniform division officers ... injured after the front door and was subsequently arrested on the state floor ... and be nearly that night I ordered enhancements around the complex and in consultation with a secretary initiated comprehensive review of the incident and perfect that measures to ensure this will not happen again ... the review began with a physical assessment of the site and personal interviews ... all the stations made that evening are being evaluated including those on tactics and use of force in light of the totality the circumstances confronting those officers ... I am committed to the following ... a complete and thorough investigations of the facts of this incident ... a complete authority of all policies procedures protocols in place to govern the security the White House complex ... in response to this incident ... and based on the results of that review ... Acorn aided informed effort to make any and all adjustments to include training and personal actions ... that are necessary to properly ensure the safety and security the president ... in the first family in the White House